US4293250A - Apparatus for transferring solids - Google Patents

Apparatus for transferring solids Download PDF

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Publication number
US4293250A
US4293250A US06/101,793 US10179379A US4293250A US 4293250 A US4293250 A US 4293250A US 10179379 A US10179379 A US 10179379A US 4293250 A US4293250 A US 4293250A
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Prior art keywords
solids
sealed chamber
liquid
transferring
pump
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Expired - Lifetime
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US06/101,793
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English (en)
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Takeshi Hayashi
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/30—Conveying materials in bulk through pipes or tubes by liquid pressure

Definitions

  • the present invention relates to an apparatus for transferring solids such as fish, hams, sausages and the like with the use of a liquid transfer medium such as water or seawater.
  • a high range of lift on the suction side lowers the transfer power of the pump and further damages the solids to be transferred. Namely, if the range of lift on the suction side is high, suction force has to be increased, for example, by the speed up of the rotation of the impeller. But with such a high speed rotation of the impeller, the solids passing through the pump are subjected to a violent force by the impeller and are apt to be damaged.
  • Such solids transfer apparatus is used to transport fish, sometimes live fish and the like. Consequently, the apparatus must not impart great shock to fish to be transferred at any stage of the operation. A great shock imparted to the fish transferred by a pump lowers the quality of the fish or kills the same.
  • An apparatus for transferring solids comprises the combination of pneumatic transfer and hydraulic transfer of solids.
  • pneumatic force By using pneumatic force, materials can be lifted up to a great height even with the use of low vacuum.
  • solids to be transferred are sucked into a sealed chamber and then the solids and a liquid transfer medium are delivered out of the sealed chamber under low vacuum and discharged by a solids transfer pump.
  • An important object of the present invention is to provide an apparatus for transferring solids in which even with a wide range of lift, the decrease of the transfer power is remarkably small and the solids can be rapidly transferred to a high and/or remote place.
  • Another important object of the present invention is to provide an apparatus for transferring solids in which since an outlet opening through which the solids are delivered out of a sealed chamber opens into a liquid, air is prevented from returning into the sealed chamber, and further solids can be introduced into the sealed chamber only by exhausting air out of the sealed chamber with a decompressing means, thereby simplifying the whole structure of the apparatus and enabling a continuous transfer of the solids.
  • a further important object of the present invention is to provide an apparatus for transferring solids which can lift the solids to a high place without imparting any strong shock to the solids.
  • FIG. 1 is a sectional view of a conventional solids transfer pump in a used condition
  • FIG. 2 is a sectional view of an embodiment of an apparatus for transferring solids according to the present invention
  • FIG. 3 is a sectional view of an air ejector connected with an inlet pipe shown in FIG. 2;
  • FIG. 4 is a sectional view of a branch pipe
  • FIGS. 5 and 6 are sectional views of other embodiments of an apparatus for transferring solids according to the present invention.
  • An apparatus for transferring solids shown in FIG. 2 comprises a sealed chamber 1 of air-tight structure, a decompressing means for exhausting air out of the sealed chamber so that the solids can be introduced into the sealed chamber 1 together with air introduced thereinto, a feeding means for feeding the sealed chamber 1 with a liquid, and a solids transfer pump 2 for transferring the solids out of the sealed chamber 1 with the use of the liquid as a transfer medium.
  • the sealed chamber 1 is provided with an inlet opening 3 and an outlet opening 4.
  • the inlet opening 3 is opened at a location above the liquid level in the sealed chamber 1, preferably at an upper portion of the sealed chamber 1 so that the solids and air can be smoothly introduced into the sealed chamber without passing through the liquid.
  • the outlet opening 4 is opened at a location above the liquid level in the sealed chamber 1 so that air in the chamber can be exhaust out.
  • the inlet opening 3 is connected with an inlet pipe 5 while the outlet opening 4 is connected with the suction side of a blower 6 used as a decompressing means.
  • a delivery opening 7 for delivering the solids and the liquid out of the chamber 1 is provided at the bottom of the sealed chamber and below the liquid level.
  • the delivery opening 7 is connected with the suction side of the solids transfer pump 2. Further, at the bottom of the sealed chamber 1 and preferably below the liquid level, a water inlet opening 8 is provided. This water inlet opening 8 is connected with the exhaust side of a return pump 9 used as a water feeding means.
  • the inlet opening 3 and the outlet opening 4 are provided at the upper portion of the sealed chamber 1 in the form of a cyclone, so that the solids introduced together with air through the inlet opening 3 into the sealed chamber 1 can be dropped smoothly and without any strong shock into the liquid in the sealed chamber 1 and so that the exhaust air neither leads the solids outwardly nor hinders the solids from dropping into the liquid.
  • the sealed chamber 1 is in the form of a cylinder which is circular in horizontal section, and the inlet opening is so opened that the connection part of the inlet pipe with the inlet opening is positioned in the direction of the tangential line of the sealed chamber 1, while the outlet opening 4 is provided in the vertical direction in the center of the sealed chamber 1.
  • the solids introduced through the inlet opening 3 into the sealed chamber 1 are rotated along the inner surface of the sealed chamber 1 and drop into the liquid, and such drop of the solids is not hindered by the air flowing toward and through the outlet opening 4.
  • the outlet opening 4 is preferably covered with a porous plate 10 through which water can pass but the solids cannot pass so as to prevent the solids from being led through the outlet opening 4 at any case.
  • the outlet opening 4 for exhausting air out of the sealed chamber 1 is never provided at a location below the liquid level in the sealed chamber 1.
  • the inlet opening 3 may be provided at a location below the liquid level in the sealed chamber 1.
  • the inlet opening 3 is shown as opened into the liquid in the sealed chamber 1.
  • the solids which has passed through the inlet pipe 5 are introduced together with air into the liquid in the sealed chamber 1 and smoothly reduced in speed, while the air introduced forms bubbles and rise up to be exhausted through the outlet opening 4.
  • a sealed chamber 1 of such a structure can decrease the shock given to the solids when they are introduced into the sealed chamber 1 and hit against the inner surface of the sealed chamber 1.
  • the liquid in the sealed chamber 1 returns through the inlet pipe 5. This trouble is overcome by bending the middle portion of the inlet pipe 5 so as to be located above the liquid level in the sealed chamber 1 as shown with broken line in FIG. 6.
  • the range of lift on the suction side is further increased by connecting an air ejector 11 in the way of the inlet pipe 5 connected with the inlet opening 3.
  • an air ejector 11 By means of the ejector 11, a high speed air stream ejected through a nozzle in the direction of the solids transfer can raise the speed of the solids passing through the inlet pipe 5. Therefore, the solids can be rapidly transferred if the inlet pipe is rather long and/or the solids are to be transferred to a high place.
  • the ejector 11 is adapted to accelerate the flow of the solids by ejecting the compressed air introduced by an air pump 12 through a narrow nozzle 13, the nozzle 13 being opened around the outer circumferential surface of the inlet pipe and oriented in the direction of the solids transfer.
  • the inlet opening 3 is positioned wholly above the liquid level in the sealed chamber. In such a sealed chamber 1, air incoming through the inlet pipe 5 is introduced without passing through the liquid and stored in the sealed chamber 1.
  • the whole of the inlet opening 3 be positioned above the liquid level in the sealed chamber 1, and if a part of the opening 3 is above the liquid level, the lower part thereof may be opened in the liquid.
  • the delivery opening 7 is preferably positioned at the bottom of the sealed chamber 1 so that the solids settled down at the bottom of the sealed chamber 1 can be smoothly delivered therethrough.
  • the delivery opening is preferably provided below the liquid level in the sealed chamber and at the uppermost possible position (not shown).
  • the water inlet opening 8 is preferably provided as opened toward the delivery opening 7 as shown in FIG. 1 so that water incoming through the opening 8 flows towards the delivery opening 7.
  • the sealed chamber 1 shown in FIG. 5 is in the form of a slender cylinder as a whole.
  • the inlet opening 3 and the outlet opening 4 are provided at the left upper end portion of the chamber 1, the water inlet opening 8 being opened at the left lower end portion so as to feed water toward the right end portion of the chamber 1, and the delivery opening 7 being opened at the right end portion of the chamber 1.
  • the liquid introduced through the water inlet opening 8 flows toward the delivery opening 7, and this liquid stream carry to the delivery opening 7 the solids fed through the inlet opening 3 into the sealed chamber 1 and settled down in the liquid, thus the solids being delivered smoothly and in regular order.
  • a level switch 31 for keeping the liquid level constant which is adapted to control the operation of the return pump 9 or the solids transfer pump 2. If the liquid level becomes lower than the predetermined value, the level switch 31 detects this and operates the return pump 9 to raise the liquid level or stops the operation of the transfer pump 2 for stopping the delivery of the liquid and the solids till the liquid level is raised.
  • the decompressing means for exhausting air out of the sealed chamber 1 is preferably of a type of producing low pressure and a good airflow, and therefore is most suitably in the form of a turbo-blower or Root's blower.
  • the quantity of the solids introduced into the sealed chamber 1 in a unit time is preferably determined by a fixed quantity type feeder, for example, a belt feeder connected with the suction end of the inlet pipe 5 as shown in FIG. 2. This is because a fixed quantity type feeder does not feed the inlet pipe 5 with an excessive amount of solids at one time and therefore prevents the inlet pipe 5 from being clogged.
  • a fixed quantity type feeder for example, a belt feeder connected with the suction end of the inlet pipe 5 as shown in FIG. 2.
  • a fixed quantity type feeder may comprise a rotary feeder, a table feeder or a feeder adapted to be operated by an operator observing with eyes the quantity of the solids fed.
  • the speed of the solids transferred through the inlet pipe 5 is controlled by decreasing through a valve 32 etc. the displacement of the decompressing means per hour.
  • the valve 32 is connected with the suction and/or exhaust side of the decompressing means i.e. the blower 6.
  • the valve 32 is branched and connected with the suction side of the blower 6.
  • the flow rate of air passing through the inlet pipe 5 determined on consideration of the kind, size, weight, breakage strength and the like.
  • the solids transfer pump 2 may comprise any type of pump which can transfer solids together with a liquid as a transfer medium.
  • the transfer pump 2 shown in FIG. 2 is a bladeless rotor pump in which an impeller having a spiral passage is rotated, while the transfer pump 2 shown in FIG. 5 is an ejector which ejects the liquid at high speed in the direction of the solids transfer.
  • the ejector is adapted to eject through a narrow nozzle 18 provided around the outer circumference of the pipe the liquid separated from the solids by a separator 16 connected to the pipe at a position downstream of the ejector and compressed by a pump 17.
  • the separator 16 is provided with a net cylinder 19 of a diameter equal to the inner diameter of the passage, and with a watertight warer chamber 20 defined around the net cylinder, a part of the water chamber 20 is opened and connected with the suction side of the pump 17.
  • a pressure equalizer 21 of a higher liquid penetration resistance than that of the net cylinder 19 so that the liquid can be more uniformly introduced through the whole net circumference of the net cylinder 19.
  • a branch pipe 23 is connected in the way of the transfer pipe 22 as shown in FIG. 5.
  • the branch pipe 23 is provided with a closing element 25 at the boundary between the branched passages 24 which is adapted to close one of the branched passages through the pivotal movement thereof as shown in FIG. 4.
  • the pivot of the closing element 25 is projected outside the branch pipe in such a manner as prevents any leakage of the liquid, and the transfer passage for the solids is changed-over by rotating the pivot.
  • the closing element 25 is curved with a recess in the middle thereof, and further, the pipe is so formed as to have a rectangular section at the portion thereof to which the closing element 25 is pivoted and then changed in shape so as to have a circular section gradually in the direction far away from rectangular section.
  • the return pump 9 may be connected with the separator 26 so as to suck the liquid separated from the solids by the separator 26 connected with the exhaust side of the transfer pump 2. Otherwise as shown in FIG. 5, the return pump 9 may be connected, through a water passable cylinder 28, with a fish bath 27 in which fish transferred together with water is stored, thereby the pump 9 returning the used liquid transfer medium to the sealed chamber 1. If the liquid transfer medium is recycled by the return pump 9 like this, the liquid can be repeatedly used and the liquid is scarcely flowed out or lost, thus the liquid level in the sealed chamber 1 is scarcely changed.
  • a hopper 29 shown in FIG. 5 is provided at the bottom thereof with a net clement 30 through which air flows into the inlet pipe 5, and by means of such air flow the solids can be introduced into the inlet pipe 5.
  • air is exhausted out of the sealed chamber by the decompressing means, thereby air being introduced through the inlet pipe connected with the sealed chamber 1, this incoming air flow transferring the solids into the sealed chamber 1, at this stage of the operation the delivery opening for delivering the solids and the liquid being positioned in the liquid in the sealed chamber and filled with the liquid, furthermore the delivery opening being connected with the transfer pump by which the liquid is delivered. Consequently air is prevented from returning into the sealed chamber and the solids can be introduced into the sealed chamber only by exhausting air out of the sealed chamber with the use of the decompressing means.
  • pneumatic transfer and hydraulic transfer of solids are combined under a limited condition so as to provide unique effects.
  • the solids are introduced into the sealed chamber, and then the solids and the liquid are efficiently transferred out of the low vacuum sealed chamber by means of the solids transfer pump.
  • the solids can be lifted to a height more than 10 m. Besides, the solids can be efficiently and rapidly transferred to a high and/or remote place without any lowering of the transfer power per a unit time. Further advantageously, since the sealed chamber is at a rather low vacuum, the solids can be efficiently and continuously delivered therefrom by the solids transfer pump.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Refuse Collection And Transfer (AREA)
  • Detergent Compositions (AREA)
  • Lubricants (AREA)
US06/101,793 1978-12-08 1979-12-10 Apparatus for transferring solids Expired - Lifetime US4293250A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP53-152890 1978-12-08
JP15289078A JPS5580628A (en) 1978-12-08 1978-12-08 Solid matter transfer device

Publications (1)

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US4293250A true US4293250A (en) 1981-10-06

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ID=15550355

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US06/101,793 Expired - Lifetime US4293250A (en) 1978-12-08 1979-12-10 Apparatus for transferring solids

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US (1) US4293250A (da)
JP (1) JPS5580628A (da)
CA (1) CA1148195A (da)
DK (1) DK514979A (da)
ES (1) ES8100438A1 (da)
NO (1) NO793997L (da)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4826362A (en) * 1980-02-01 1989-05-02 Kyoeizoki Co., Ltd. Solid transfer apparatus
US5078579A (en) * 1990-06-26 1992-01-07 Ryan Robert M Side entry fish pump
US6368028B1 (en) * 1997-09-03 2002-04-09 Exxonmobil Chemical Patents Inc. Conveying systems for compacted, friable solids
US20100015311A1 (en) * 2008-07-16 2010-01-21 Stousland Glenn W Transfer mechanism for use with a food processing system
US9598246B2 (en) * 2011-01-07 2017-03-21 Conagra Foods Lamb Weston, Inc. Fluid-based article distribution and sorting system
US9717258B2 (en) 2014-10-28 2017-08-01 Cooke Aquaculture Inc. Constant diameter pumping system and method
US20180310575A1 (en) * 2015-10-29 2018-11-01 Seaside As Method and System for Moving Killed Fish in a Pipe or Pipeline
US10555510B2 (en) 2014-10-28 2020-02-11 Cooke Aquaculture Inc. Fish pumping system and method
NO20200697A1 (no) * 2020-06-12 2021-12-13 Stranda Prolog As System for lagring av faste næringsmidler i væske
US11560276B2 (en) 2008-07-16 2023-01-24 Lyco Manufacturing, Inc. Transfer mechanism for use with a food processing system
US11975928B2 (en) 2008-07-16 2024-05-07 Lyco Manufacturing, Inc. Transfer mechanism for use with a food processing system
WO2024096747A1 (en) * 2022-11-01 2024-05-10 Mmc First Process As Tank arrangement and method for handling biomass

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111057600B (zh) * 2019-12-26 2020-12-11 郑州大学 一种水热炭化一体化工艺设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2714533A (en) * 1951-09-06 1955-08-02 Buehler Ag Geb Pneumatic conveyor
US2744792A (en) * 1952-03-07 1956-05-08 William H Mead Apparatus for conveying comminuted materials
US3942841A (en) * 1974-04-23 1976-03-09 Continental Oil Company Slurry handling system
US3942842A (en) * 1971-08-03 1976-03-09 Young Jr Henry T Industrial vacuum loading apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2714533A (en) * 1951-09-06 1955-08-02 Buehler Ag Geb Pneumatic conveyor
US2744792A (en) * 1952-03-07 1956-05-08 William H Mead Apparatus for conveying comminuted materials
US3942842A (en) * 1971-08-03 1976-03-09 Young Jr Henry T Industrial vacuum loading apparatus
US3942841A (en) * 1974-04-23 1976-03-09 Continental Oil Company Slurry handling system

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4826362A (en) * 1980-02-01 1989-05-02 Kyoeizoki Co., Ltd. Solid transfer apparatus
US5078579A (en) * 1990-06-26 1992-01-07 Ryan Robert M Side entry fish pump
US6368028B1 (en) * 1997-09-03 2002-04-09 Exxonmobil Chemical Patents Inc. Conveying systems for compacted, friable solids
US10710820B2 (en) * 2008-07-16 2020-07-14 Lyco Manufacturing, Inc. Transfer mechanism for use with a food processing system
US20100015311A1 (en) * 2008-07-16 2010-01-21 Stousland Glenn W Transfer mechanism for use with a food processing system
US9060530B2 (en) * 2008-07-16 2015-06-23 Lyco Manufacturing, Inc. Transfer mechanism for use with a food processing system
US11975928B2 (en) 2008-07-16 2024-05-07 Lyco Manufacturing, Inc. Transfer mechanism for use with a food processing system
US11560276B2 (en) 2008-07-16 2023-01-24 Lyco Manufacturing, Inc. Transfer mechanism for use with a food processing system
US9598246B2 (en) * 2011-01-07 2017-03-21 Conagra Foods Lamb Weston, Inc. Fluid-based article distribution and sorting system
US10555510B2 (en) 2014-10-28 2020-02-11 Cooke Aquaculture Inc. Fish pumping system and method
US9717258B2 (en) 2014-10-28 2017-08-01 Cooke Aquaculture Inc. Constant diameter pumping system and method
US10701947B2 (en) * 2015-10-29 2020-07-07 Seaside As Method and system for moving killed fish in a pipe or pipeline
US20180310575A1 (en) * 2015-10-29 2018-11-01 Seaside As Method and System for Moving Killed Fish in a Pipe or Pipeline
NO20200697A1 (no) * 2020-06-12 2021-12-13 Stranda Prolog As System for lagring av faste næringsmidler i væske
WO2021251831A1 (en) * 2020-06-12 2021-12-16 Stranda Prolog As System for transferring solid food articles in liquid to and from a storage
NO346373B1 (no) * 2020-06-12 2022-06-27 Stranda Prolog As System for lagring av faste næringsmidler i væske
GB2611219A (en) * 2020-06-12 2023-03-29 Hoseth Holdings As System for transferring solid food articles in liquid to and from a storage
GB2611219B (en) * 2020-06-12 2024-03-27 Hoseth Holding AS System for transferring solid food articles in liquid to and from a storage
WO2024096747A1 (en) * 2022-11-01 2024-05-10 Mmc First Process As Tank arrangement and method for handling biomass

Also Published As

Publication number Publication date
ES486701A0 (es) 1980-11-01
CA1148195A (en) 1983-06-14
JPS5580628A (en) 1980-06-18
ES8100438A1 (es) 1980-11-01
NO793997L (no) 1980-06-10
DK514979A (da) 1980-06-09

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